Viability and Vigor of White Guava (Psidium guajava L.) Seeds in Different Stages of Maturation

Abstract

The white Guava (Psidium guajava L.) is a native fruit tree belonging to the family Myrtaceae, which has a lot of rusticity, adapting to various edaphoclimatic conditions. White Guava is a fruit native to tropical America and the most cultivated species of the Myrtaceae family. It is an excellent source of vitamin C and has an appreciable amount of minerals such as calcium, phosphorus, and iron. The objective of this work was to determine the viability and vigor of white guava seeds at different stages of fruit maturation. The experiment was carried out in the greenhouse of the Federal Institute of Education (IFTO), Science and Technology of Tocantins, in the city of Gurupi – Tocantins - Brazil, between February 17 and July 28, 2020. The white guava seeds collected directly from the fruit were used, which were harvested in the urban region of Gurupi – Tocantins - Brazil in February 2020. Root and shoot length, number of leaves, first emergency count, and seedling emergence were evaluated. White Guava seeds, taken from ripe fruits, provided the highest viability and vigor values.